Welcome to MIXXX here you can learn how to become a pro at MIXXX!

you can get some basic information on MIXXX with this power point


this is the link to the MIXXX manual
http://www.scribd.com/doc/2149500/Mixxx-Manual


this is the diagram of MIXXX
The labeled things are the main tools and functions that you will need in mixing songs.

Keyboard shortcuts

Z (N) - Beat tap
G, H - Crossfader move left and right (soft step with SHIFT)
T (Y) - Headphone toggle
5 (6) - Bass kill
4,(7) - Mid kill
3,(8) - Hi kill
2,(9) - Flanger
1,(0) - Sync
D, (K) - Start/Stop
SHIFT + F, (SHIFT +L) - Set cue
F, (L) - Cue goto
SHIFT + F, (SHIFT +L) - Cue preview
Q, (U) - Channel volume down
W, (I) - Channel volume up
A, (J) - Fast backward
S, (K) - Fast forward
F1 (F5) - Permanent pitch down
F2, (F5) - Permanent pitch up
F3, (F7) - Temporary pitch down
F4, (F8) - Temporary pitch up

A tutorial that can give you some advise when mixing, or doing a mashup
1.

2.
http://www.youtube.com/watch?v=x2Y_HDXMilQ
(sorry we couldnt upload this file because it was too big)

simple steps of doing a mashup:
1. Load two different songs in to the two tracks
2. now match the two songs' beats and tempo, either using the beat marks or using your ears. (it is recommended that you use your ears. Also, the two songs might sound like they are in beat at the begining, but they might not be in beat as the song goes on, so you must check all the way through the songs)
3. Now match up the two song's pitches.
4. while playing the two songs, you may use functions such as bass kill, high kill, mid kill and the crossfader on different parts and times of the song.

Alos before making your own mashup up or mix, you would like to hear other's mashups.
http://www.youtube.com/watch?v=HkHJ2-zoSB4
http://www.youtube.com/watch?v=cYQJ_SIVUVE